Goodwill And Intangible Assets (Changes In The Carrying Value Of Goodwill) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Goodwill [Line Items]
Gross carrying value, Beginning	$ 32,744
Acquisition	36,540
Currency translation	529
Gross carrying value, Ending	69,813
Accumulated impairment losses, Beginning	(23,161)
Accumulated impairment losses, Ending	(23,161)
Net carrying value	46,652	$ 9,583
United States [Member]
Goodwill [Line Items]
Gross carrying value, Beginning	19,786
Acquisition	36,540
Gross carrying value, Ending	56,326
Accumulated impairment losses, Beginning	(19,786)
Accumulated impairment losses, Ending	(19,786)
Net carrying value	36,540
Canada [Member]
Goodwill [Line Items]
Gross carrying value, Beginning	7,142
Acquisition
Currency translation	84
Gross carrying value, Ending	7,226
Accumulated impairment losses, Beginning	(3,375)
Accumulated impairment losses, Ending	(3,375)
Net carrying value	3,851	3,767
Poland [Member]
Goodwill [Line Items]
Gross carrying value, Beginning	5,816
Acquisition
Currency translation	445
Gross carrying value, Ending	6,261
Accumulated impairment losses, Beginning
Accumulated impairment losses, Ending
Net carrying value	$ 6,261	$ 5,816